Leadshine EL8-EC Series User Manual page 231

Steps:
1、Set the trial run velocity Pr6.04. Value set shouldn't be too large, please keep it at
around 400 r/min.
2、Enter AF_GL for auxiliary function – Inertia ratio determination into front panel
3、Press S once to enter. "G---" will be displayed on the front panel.
4、Press
5、Press
6、After the calculation is done, G xxx will be displayed and xxx is the value of inertia
calculated.
7、Write the corresponding value into Pr0.04. Please refer to for parameter saving on
servo driver.
Inertia measuring using Motion Studio
1. Start Motion Studio and maneuver to inertia measuring page under performance tuning.
Set trial run velocity Pr6.04 and acc-/deceleration time Pr6.25, click on 'Upload' to
upload parameters to servo driver.
2. Tick "Prohibit external enabling" and click on "servo on".
3. Click and hold "CCW" to start the motor. Current position will show motor cycles of
revolution. Click on POS 1 to save current position as starting point. Click and hold "CW"
to start the motor again. Click on POS 2 to save current position as ending point.
4. Set the waiting time between each cycle in Pr6.21 and no. of cycles in Pr6.22. Click on
'Run' and motor will run according to the parameters set.
5. After the calculation is done, inertia ratio will be calculated automatically and click on
'write' to enter the calculated value into Pr0.04.
6. Click on "
on " " to save parameters to driver.
Please take note:
1. Trial run velocity and distance should be optimal to prevent any axis from bumping into
objects.
2. It is recommended to move only in 1 direction for vertically mounted axis. Take
precaution before moving the axis.
3. For applications with higher frictional drag, please set a minimal travel distance.
Name
Pr0.04 Range
Activation
Pr0.04=( load inertia/motor rotational inertia)×100%
Notice:
Set inertia ratio according to actual load inertia. When both are uniform, actual motor velocity loop
responsiveness and gain settings will be consistent. If inertia ratio is greater than actual value,
velocity loop gain settings will be higher and vice versa.
once to display "StUon"
or once to start to calculate the inertia.
" to enter parameters management to check or modify Pr0.04. Then, click
Inertia ratio
0~2000
Unit
0
Immediate
User manual of EL8-EC***F AC Servo
Mode
% Default 250 Index 2004h
231
F